Solar activity forecast for the period October 7 - 8, 2017


Issued: 2017 October 6 17:15 UTC


Analysis from October 05/1700 UTC to October 06/1700 UTC:

Sunspot Regions on the Disk 06/1641 UTC (SDO Continuum): 2
The Largest Event: B5.5 at 05/2327 UTC
X-ray background flux (1.0-8.0 A) October 5: A5.9 (inaccurate data)
Radio Flux 10.7 cm at 05/2300 UTC (Penticton): 86
Solar Wind Speed at 06/1645 UTC: 433.4 km/s, Density: 5.6 p/cm^3


Forecast:
 
activity level will be very low to low
Event probabilities: Class C: 20, Class M: 01, Class X: 01, Proton: 01
X-ray background flux (1.0-8.0 A): in the range A8.5 - B2.0
Radio Flux 10.7 cm: a fluctuation in the range 81-91

Tomas Blaha
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz